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table of contents
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13 Protection Control<br />
13.1. Protection Control For All Operations<br />
13.1.1. Time Delay Safety Control<br />
1. The compressor starts the operation, it will not stop its operation for 30 seconds.<br />
2. This control is not applicable if the power supply is cut <strong>of</strong>f and on again or after 4-way valve deices condition.<br />
13.1.2. 30 Seconds Forced Operation<br />
1. Once compressor starts the operation, it will not stop its operation for 30 seconds.<br />
2. However, it can be stopped with the remote control or the Auto Switch on the indoor unit.<br />
13.1.3. Total Running Current Control<br />
1. When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressor operation will be<br />
decreased.<br />
2. If the running current does not exceed X value for ten seconds, the frequency instructed will be increased.<br />
3. However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for 3 minutes.<br />
Model TE9HK TE12HK<br />
Operation Mode X (A) Y (A) X (A) Y (A)<br />
Cooling/S<strong>of</strong>t Dry (A) 4.13 15.35 6.15 15.35<br />
Cooling/S<strong>of</strong>t Dry (B) 3.63 15.35 5.65 15.35<br />
Heating 4.75 15.35 6.24 15.35<br />
4. The first 30 minutes <strong>of</strong> cooling operation, (A) will be applied.<br />
13.1.4. IPM (Power transistor) Prevention Control<br />
A. Overheating Prevention Control<br />
1. When the IPM temperature rises to 110�C, compressor operation will stop immediately.<br />
2. Compressor operation restarts after three minutes the temperature decreases to 95�C.<br />
B. DC Peak Current Control<br />
1. When electric current to IPM exceeds set value <strong>of</strong> 30.0 ± 5.0 A, the compressor will stop operate. Then, operation will<br />
restart after 3 minutes.<br />
2. If the set value is exceeded again more than 30 seconds after the compressor starts, the operation will restart after two<br />
minutes.<br />
3. If the set value exceeded again within 30 seconds after the compressor starts, the operation will restart after one minute. If<br />
this condition repeats continuously for seven times, all indoor and outdoor relays will be cut <strong>of</strong>f.<br />
13.1.5. Compressor Overheating Prevention Control<br />
Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes <strong>of</strong> frequency<br />
are as below figure.<br />
If compressor discharge temperature exceeds 110�C, compressor will stop, occurs 4 times per 20 minutes, timer LED will be<br />
blinking. (“F97” is to be confirmed.)<br />
34
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